User dchoo333

Points breakdown

91 / 100

AC | PYPY3

Phantom's Python Challenge

on March 22, 2026, 4:11 a.m.

37pp

weighted 100% (37pp)

100 / 100

AC | C++20

IOI '18 P6 - Meetings

on March 18, 2026, 7:47 a.m.

35pp

weighted 95% (33pp)

100 / 100

AC | C++17

APIO '17 P1 - Land of the Rainbow Gold

on April 5, 2026, 12:33 a.m.

30pp

weighted 90% (27pp)

44 / 44

AC | PY3

Google Code Jam '22 Round 1C Problem C - Intranets

on March 18, 2026, 2:10 a.m.

30pp

weighted 86% (26pp)

100 / 100

AC | C++17

CCO Preparation Test 3 P3 - Arrow

on Feb. 21, 2026, 9:25 a.m.

30pp

weighted 81% (24pp)

100 / 100

AC | C

NOI '08 P2 - Course Design

on Dec. 9, 2025, 1:02 p.m.

30pp

weighted 77% (23pp)

100 / 100

AC | C++17

AAAA 1 P5 - Mirror Sort

on March 17, 2026, 4:25 a.m.

25pp

weighted 74% (18pp)

15 / 15

AC | PY3

DMOPC '20 Contest 3 P5 - Tower of Power

on Feb. 18, 2026, 8:07 a.m.

25pp

weighted 70% (17pp)

100 / 100

AC | PYPY3

DMOPC '19 Contest 1 P6 - Bob and Binary Strings

on Dec. 10, 2025, 4:55 a.m.

25pp

weighted 66% (17pp)

100 / 100

AC | C++17

NOI '08 P3 - Hiring Employees

on Dec. 9, 2025, 10:21 a.m.

25pp

weighted 63% (16pp)

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 1 P2 - Alpaca Racing	5 / 5
An Animal Contest 1 P3 - Happy Alpacas	7 / 7
An Animal Contest 1 P4 - Alpaca Arrays	10 / 10
An Animal Contest 1 P5 - Odd Alpacas	12 / 12
An Animal Contest 1 P6 - Alpaca Distancing	12 / 12
An Animal Contest 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 2 P1 - Koala Konundrum	5 / 5
An Animal Contest 2 P2 - Koala Party	5 / 5
An Animal Contest 2 P3 - Koala Balloons	12 / 12
An Animal Contest 2 P4 - Koala Gambling	12 / 12
An Animal Contest 2 P5 - Koala Carnival	15 / 15
An Animal Contest 2 P6 - Koala Transport System	17 / 17
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 3 P2 - Monkey Potato	5 / 5
An Animal Contest 3 P3 - Monkey Market	7 / 7
An Animal Contest 3 P4 - Monkey Mayhem	7 / 7
An Animal Contest 3 P5 - Monkey Canoe	12 / 12
An Animal Contest 3 P6 - Monkey Station	17 / 17
An Animal Contest 4 P1 - Dasher's Digits	5 / 5
An Animal Contest 4 P2 - Lavish Lights	10 / 10
An Animal Contest 4 P3 - Snowy Slopes	10 / 10
An Animal Contest 4 P4 - Reindeer Racing	10 / 10
An Animal Contest 4 P5 - Neighbourly Neighbourhoods	12 / 12
An Animal Contest 5 P1 - Bamboo Cookies	3 / 3
An Animal Contest 5 P4 - Number Game	12 / 12
An Animal Contest 6 P3 - OAC	12 / 12
An Animal Contest 7 P3 - Squirrel Scramble	12 / 12

Problem	Score
Another Contest 2 Problem 2 - Poutine	10 / 10
Another Contest 2 Problem 3 - Poutine	15 / 15
Another Contest 3 Problem 1 - Diverse Arrays	7 / 7
Another Contest 5 Problem 1 - Goat Fence	3 / 3
Another Contest 5 Problem 2 - Great Graffiti	5 / 5
Another Contest 5 Problem 3 - Cutting Cheese Costs	5 / 5
Another Contest 5 Problem 5 - Another Cheese Problem	12 / 12
Another Contest 7 Problem 1 - Lonely Users	3 / 3
Another Contest 7 Problem 2 - Code Review	7 / 7
Another Contest 8 Problem 1 - Trash Push	3 / 3

Problem	Score
APIO '10 P1 - Commando	20 / 20
APIO '17 P1 - Land of the Rainbow Gold	30 / 30

Problem	Score
Baltic OI '02 P1 - Speed Limits	12 / 12
Baltic OI '02 P2 - Tennis Club	12 / 12
Baltic OI '02 P3 - Triangles	12 / 12
Baltic OI '02 P4 - Bicriterial Routing	12 / 12
Baltic OI '03 P2 - Gems	12 / 12
Baltic OI '03 P4 - The Gangs	12 / 12
Baltic OI '05 P1 - Camouflaged camp	12 / 12
Baltic OI '05 P3 - Maze	12 / 12
Baltic OI '05 P4 - Ancient Manuscript	12 / 12
Baltic OI '06 P2 - Coin Collector	12 / 12
Baltic OI '07 P4 - Building a Fence	12 / 12
Baltic OI '07 P6 - Sequence	12 / 12
Baltic OI '08 P3 - Magical Stones	3.333 / 20
Baltic OI '08 P4 - Elections	12 / 12
Baltic OI '09 P2 - Candy Machine	12 / 12
Baltic OI '09 P3 - Subway Signaling Error	12 / 12
Baltic OI '10 P2 - Lego	12 / 12
Baltic OI '10 P3 - Printed Circuit Board	12 / 12
Baltic OI '11 P3 - Switch the Lamp On	12 / 12
Baltic OI '12 P6 - Tiny	8.406 / 30
Baltic OI '13 P5 - Tracks in the Snow	12 / 12

Problem	Score
BlueBook - Cross Country	3 / 3
BlueBook - Cost	3 / 3
BlueBook - Direction	3 / 3
BlueBook - Pay	3 / 3
BlueBook - Change	3 / 3
BlueBook - Times Tables	3 / 3
BlueBook - Max is Last	3 / 3
BlueBook - Interest	3 / 3
BlueBook - World Pop	3 / 3
BlueBook - Power Base	3 / 3
BlueBook - Powers of 2	3 / 3
BlueBook - Find the Character	3 / 3
BlueBook - Column of Numbers	3 / 3
BlueBook - Pop Explosion	3 / 3
BlueBook - Digits and Sums	3 / 3
BlueBook - Exact Divisors	3 / 3
BlueBook - 10 Primes on a Line	5 / 5
BlueBook - Bills Bills Bills	7 / 7
BlueBook - Max	3 / 3
BlueBook - Payment	3 / 3
BlueBook - Mode	3 / 3
BlueBook - Magic Square	3 / 3
BlueBook - Triangle	3 / 3
BlueBook - Sieve	5 / 5
BlueBook - Voting	3 / 3
BlueBook - Min	3 / 3
BlueBook - First Blank	3 / 3
BlueBook - Digits	3 / 3
BlueBook - Lower Case	3 / 3
BlueBook - Prime	3 / 3
BlueBook - Days	3 / 3
BlueBook - Grades	3 / 3
BlueBook - Leap Year	3 / 3
BlueBook - Calculator	7 / 7
BlueBook - Multiple	3 / 3
BlueBook - Equation	3 / 3

User dchoo333

Points breakdown

Authored problems (1)

AAC (255 points)

ACC (70 points)

APIO (50 points)

Baltic OI (239.739 points)

BlueBook (120 points)

Bubble Cup (34 points)

CCC (1882 points)

CCO (126.444 points)

China NOI (90 points)

Classics (76 points)

COCI (82.273 points)

CSPC (3 points)

CTF (17 points)

Data Structure Tests (8.250 points)

DMOPC (182.600 points)

DWITE (29 points)

ECOO (133 points)

FHC (10 points)

GFSSOC (38.500 points)

Google Code Jam (66.400 points)

ICPC (13 points)

IOI (35 points)

JOI (28.500 points)

Mock CCC (107.118 points)

Mock CCO (42 points)

MWC (5 points)

Olympiads School (35.600 points)

SAC Coding Challenge (13 points)

Seasonal (97.500 points)

TLE (50.100 points)

TSOC (3 points)

Uncategorized (1093.903 points)

VM7WC (18 points)

WAC (3.750 points)

Waterloo Local (94 points)

Woburn Challenge (103 points)

YAC (5.800 points)

Problem	Score
Bubble Cup V8 D Tablecity	10 / 10
Bubble Cup V8 H Bots	12 / 12
Bubble Cup V9 H Dexterina's Lab	12 / 12

Problem	Score
CCC '00 J1 - Calendar	5 / 5
CCC '00 J2 - 9966	3 / 3
CCC '00 S1 - Slot Machines	5 / 5
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '00 S3 - Surfing	7 / 7
CCC '00 S4 - Golf	7 / 7
CCC '00 S5 - Sheep and Coyotes	10 / 10
CCC '01 J1 - Dressing Up	3 / 3
CCC '01 J2 - Mod Inverse	3 / 3
CCC '01 S1 - Keeping Score	5 / 5
CCC '01 S2 - Spirals	5 / 5
CCC '01 S2 - Spirals (Exact Version)	7 / 7
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '01 S4 - Cookies	10 / 10
CCC '01 S5 - Post's Correspondence Problem	10 / 10
CCC '02 J1 - 0123456789	3 / 3
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '02 S1 - The Students' Council Breakfast	5 / 5
CCC '02 S2 - Fraction Action	5 / 5
CCC '02 S3 - Blindfold	15 / 15
CCC '02 S4 - Bridge Crossing	10 / 10
CCC '02 S5 - Follow the Bouncing Ball	10 / 10
CCC '03 J1 - Trident	3 / 3
CCC '03 J2 - Picture Perfect	3 / 3
CCC '03 S1 - Snakes and Ladders	5 / 5
CCC '03 S2 - Poetry	5 / 5
CCC '03 S3 - Floor Plan	7 / 7
CCC '03 S4 - Substrings	15 / 15
CCC '03 S5 - Trucking Troubles	10 / 10
CCC '04 J1 - Squares	3 / 3
CCC '04 J2 - Terms of Office	3 / 3
CCC '04 J3 - Smile with Similes	3 / 3
CCC '04 J4 - Simple Encryption	5 / 5
CCC '04 J5 - Fractals	10 / 10
CCC '04 S1 - Fix	5 / 5
CCC '04 S2 - TopYodeller	5 / 5
CCC '04 S3 - Spreadsheet	10 / 10
CCC '04 S4 - Space Turtle	10 / 10
CCC '04 S5 - Super Plumber	10 / 10
CCC '05 J1 - The Cell Sell	3 / 3
CCC '05 J2 - RSA Numbers	3 / 3
CCC '05 J3 - Returning Home	5 / 5
CCC '05 J4 - Cross Spiral	7 / 7
CCC '05 J5 - Bananas	10 / 10
CCC '05 S1 - Snow Calls	5 / 5
CCC '05 S2 - Mouse Move	5 / 5
CCC '05 S3 - Quantum Operations	10 / 10
CCC '05 S4 - Pyramid Message Scheme	10 / 10
CCC '05 S5 - Pinball Ranking	12 / 12
CCC '06 J1 - Canadian Calorie Counting	3 / 3
CCC '06 J2 - Roll the Dice	3 / 3
CCC '06 J3 - Cell-Phone Messaging	3 / 3
CCC '06 J4 - It's tough being a teen!	7 / 7
CCC '06 J5 - CCC Othello	10 / 10
CCC '06 S1 - Maternity	5 / 5
CCC '06 S2 - Attack of the CipherTexts	5 / 5
CCC '06 S3 - Tin Can Telephone	12 / 12
CCC '06 S4 - Groups	10 / 10
CCC '06 S5 - Origin of Life	15 / 15
CCC '07 J1 - Who is in the Middle?	3 / 3
CCC '07 J2 - I Speak TXTMSG	3 / 3
CCC '07 J3 - Deal or No Deal Calculator	3 / 3
CCC '07 J4 - Anagram Checker	5 / 5
CCC '07 J5 - Keep on Truckin'	7 / 7
CCC '07 S1 - Federal Voting Age	3 / 3
CCC '07 S2 - Boxes	5 / 5
CCC '07 S3 - Friends	7 / 7
CCC '07 S4 - Waterpark	7 / 7
CCC '07 S5 - Bowling for Numbers	10 / 10
CCC '08 J1 - Body Mass Index	3 / 3
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '08 J3 - GPS Text Entry	3 / 3
CCC '08 J4 - From Prefix to Postfix	7 / 7
CCC '08 S1 - It's Cold Here!	3 / 3
CCC '08 S2 - Pennies in the Ring	5 / 5
CCC '08 S3 - Maze	7 / 7
CCC '08 S4 - Twenty-four	10 / 10
CCC '08 S5 - Nukit	10 / 10
CCC '09 J1 - ISBN	3 / 3
CCC '09 J2 - Old Fishin' Hole	5 / 5
CCC '09 J3 - Good Times	5 / 5
CCC '09 J4 - Signage	5 / 5
CCC '09 S1 - Cool Numbers	5 / 5
CCC '09 S2 - Lights Going On and Off	10 / 10
CCC '09 S3 - Degrees Of Separation	10 / 10
CCC '09 S4 - Shop and Ship	10 / 10
CCC '09 S5 - Wireless	12 / 12
CCC '10 J1 - What is n, Daddy?	3 / 3
CCC '10 J2 - Up and Down	5 / 5
CCC '10 J3 - Punchy	5 / 5
CCC '10 J4 - Global Warming	5 / 5
CCC '10 J5 - Knight Hop	7 / 7
CCC '10 S1 - Computer Purchase	5 / 5
CCC '10 S2 - Huffman Encoding	5 / 5
CCC '10 S3 - Firehose	15 / 15
CCC '10 S4 - Animal Farm	15 / 15
CCC '10 S5 - Nutrient Tree	20 / 20
CCC '11 J1 - Which Alien?	3 / 3
CCC '11 J2 - Who Has Seen The Wind	5 / 5
CCC '11 J3 - Sumac Sequences	5 / 5
CCC '11 J4 - Boring Business	7 / 7
CCC '11 J5 - Unfriend	7 / 7
CCC '11 S1 - English or French?	5 / 5
CCC '11 S2 - Multiple Choice	3 / 3
CCC '11 S3 - Alice Through the Looking Glass	10 / 10
CCC '11 S4 - Blood Distribution	15 / 15
CCC '11 S5 - Switch	12 / 12
CCC '12 J1 - Speed fines are not fine!	3 / 3
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 J3 - Icon Scaling	3 / 3
CCC '12 J4 - Big Bang Secrets	3 / 3
CCC '12 S1 - Don't pass me the ball!	3 / 3
CCC '12 S2 - Aromatic Numbers	5 / 5
CCC '12 S3 - Absolutely Acidic	7 / 7
CCC '12 S4 - A Coin Game	15 / 15
CCC '12 S5 - Mouse Journey	7 / 7
CCC '13 J1 - Next in line	3 / 3
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 J4 - Time on task	5 / 5
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S2 - Bridge Transport	5 / 5
CCC '13 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '13 S5 - Factor Solitaire	15 / 15
CCC '14 J1 - Triangle Times	3 / 3
CCC '14 J2 - Vote Count	3 / 3
CCC '14 J3 - Double Dice	3 / 3
CCC '14 S1 - Party Invitation	5 / 5
CCC '14 S2 - Assigning Partners	5 / 5
CCC '14 S3 - The Geneva Confection	7 / 7
CCC '14 S4 - Tinted Glass Window	15 / 15
CCC '14 S5 - Lazy Fox	20 / 20
CCC '15 J1 - Special Day	3 / 3
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J3 - Rövarspråket	5 / 5
CCC '15 J4 - Wait Time	5 / 5
CCC '15 J5 - π-day	10 / 10
CCC '15 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '15 S4 - Convex Hull	15 / 15
CCC '15 S5 - Greedy For Pies	17 / 17
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S1 - Ragaman	3 / 3
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '16 S3 - Phonomenal Reviews	12 / 12
CCC '16 S4 - Combining Riceballs	15 / 15
CCC '16 S5 - Circle of Life	20 / 20
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J3 - Exactly Electrical	3 / 3
CCC '17 J4 - Favourite Times	5 / 5
CCC '17 S1 - Sum Game	3 / 3
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
CCC '17 S4 - Minimum Cost Flow	17 / 17
CCC '17 S5 - RMT	20 / 20
CCC '18 J1 - Telemarketer or not?	3 / 3
CCC '18 J2 - Occupy parking	3 / 3
CCC '18 J3 - Are we there yet?	3 / 3
CCC '18 J5 - Choose your own path	7 / 7
CCC '18 S1 - Voronoi Villages	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '18 S3 - RoboThieves	10 / 10
CCC '18 S4 - Balanced Trees	15 / 15
CCC '18 S5 - Maximum Strategic Savings	20 / 20
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J2 - Time to Decompress	3 / 3
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 J5 - Rule of Three	10 / 20
CCC '19 S1 - Flipper	3 / 3
CCC '19 S2 - Pretty Average Primes	5 / 5
CCC '19 S3 - Arithmetic Square	12 / 12
CCC '19 S4 - Tourism	20 / 20
CCC '19 S5 - Triangle: The Data Structure	20 / 20
CCC '20 J1 - Dog Treats	3 / 3
CCC '20 J2 - Epidemiology	3 / 3
CCC '20 J3 - Art	3 / 3
CCC '20 J4 - Cyclic Shifts	5 / 5
CCC '20 J4 - Cyclic Shifts (Hard)	12 / 12
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '20 S2 - Escape Room	10 / 10
CCC '20 S3 - Searching for Strings	12 / 12
CCC '20 S4 - Swapping Seats	12 / 12
CCC '20 S5 - Josh's Double Bacon Deluxe	17 / 17
CCC '21 J1 - Boiling Water	3 / 3
CCC '21 J2 - Silent Auction	3 / 3
CCC '21 J3 - Secret Instructions	5 / 5
CCC '21 J4 - Arranging Books	7 / 7
CCC '21 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
CCC '21 S3 - Lunch Concert	10 / 10
CCC '21 S4 - Daily Commute	12 / 12
CCC '21 S5 - Math Homework	15 / 15
CCC '22 J1 - Cupcake Party	3 / 3
CCC '22 J2 - Fergusonball Ratings	3 / 3
CCC '22 J3 - Harp Tuning	5 / 5
CCC '22 J5 - Square Pool	10 / 10
CCC '22 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S2 - Good Groups	5 / 5
CCC '22 S3 - Good Samples	10 / 10
CCC '22 S4 - Good Triplets	15 / 15
CCC '22 S5 - Good Influencers	17 / 17
CCC '23 J1 - Deliv-e-droid	3 / 3
CCC '23 J2 - Chili Peppers	3 / 3
CCC '23 J3 - Special Event	5 / 5
CCC '23 J5 - CCC Word Hunt	10 / 10
CCC '23 S1 - Trianglane	5 / 5
CCC '23 S2 - Symmetric Mountains	7 / 7
CCC '23 S3 - Palindromic Poster	10 / 10
CCC '23 S4 - Minimum Cost Roads	15 / 15
CCC '23 S5 - The Filter	20 / 20
CCC '24 J1 - Conveyor Belt Sushi	3 / 3
CCC '24 J2 - Dusa And The Yobis	3 / 3
CCC '24 J3 - Bronze Count	5 / 5
CCC '24 J4 - Troublesome Keys	7 / 7
CCC '24 J5 - Harvest Waterloo	7 / 7
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '24 S3 - Swipe	10 / 10
CCC '24 S4 - Painting Roads	12 / 12
CCC '24 S5 - Chocolate Bar Partition	20 / 20
CCC '25 J1 - Roller Coaster Ride	3 / 3
CCC '25 J2 - Donut Shop	3 / 3
CCC '25 J3 - Product Codes	5 / 5
CCC '25 J4 - Sunny Days	5 / 5
CCC '25 J5 - Connecting Territories	7 / 7
CCC '25 S1 - Positioning Peter's Paintings	3 / 3
CCC '25 S2 - Cryptogram Cracking Club	7 / 7
CCC '25 S3 - Pretty Pens	10 / 10
CCC '25 S4 - Floor is Lava	12 / 12
CCC '25 S5 - To-Do List	17 / 17
CCC '26 J1 - Concert Tickets	3 / 3
CCC '26 J2 - Olympic Scores	3 / 3
CCC '26 J3 - Creative Candy Consumption	3 / 3
CCC '26 J4 - Snail Path	5 / 5
CCC '26 S1 - Baby Hop, Giant Hop	5 / 5
CCC '26 S2 - Beams of Light	7 / 7
CCC '26 S3 - Common Card Choice	7 / 7
CCC '96 S1 - Deficient, Perfect, and Abundant	5 / 5
CCC '96 S2 - Divisibility by 11	7 / 7
CCC '96 S3 - Pattern Generator	5 / 5
CCC '96 S4 - When in Rome	10 / 10
CCC '96 S5 - Maximum Distance	7 / 7
CCC '97 S1 - Sentences	5 / 5
CCC '97 S2 - Nasty Numbers	5 / 5
CCC '97 S3 - Double Knockout Competition	5 / 5
CCC '97 S4 - Dynamic Dictionary Coding	5 / 5
CCC '97 S5 - Long Division	10 / 10
CCC '98 S1 - Censor	5 / 5
CCC '98 S2 - Cross Number Puzzle	5 / 5
CCC '98 S3 - Mars Rover	7 / 7
CCC '98 S4 - Lottery	10 / 10
CCC '98 S5 - Mountain Passage	10 / 10
CCC '99 S1 - Card Game	5 / 5
CCC '99 S2 - Year 2000	7 / 7
CCC '99 S3 - Divided Fractals	7 / 7
CCC '99 S4 - A Knightly Pursuit	12 / 12
CCC '99 S5 - Letter Arithmetic	12 / 12
CCCHK '08 J1 - Best fish	3 / 3
CCCHK '15 J1 - Rock-paper-scissors	3 / 3

Problem	Score
CCO '01 P4 - Breaking Level (Standard I/O)	12 / 12
CCO '02 P4 - Duathlon	10 / 10
CCO '06 P1 - CN Tower	5 / 5
CCO '07 P3 - Bowling for Numbers++	12 / 20
CCO '11 P3 - Spies Like Us	4.444 / 10
CCO '12 P1 - Choose Your Own Arithmetic	7 / 7
CCO '13 P1 - All Your Base Belong to Palindromes	10 / 10
CCO '14 P3 - Werewolf	17 / 17
CCO '17 P1 - Vera and Trail Building	7 / 7
CCO '17 P3 - Vera and Modern Art	18 / 30
CCO '96 P1 - Train Swapping	5 / 5
CCO '98 P1 - Fibonacci Numbers	7 / 7
CCO '98 P3 - Bus Schedule	12 / 12

Problem	Score
NOI '07 P1 - Social Network	15 / 15
NOI '07 P4 - Necklace Factory	20 / 20
NOI '08 P2 - Course Design	30 / 30
NOI '08 P3 - Hiring Employees	25 / 25

Problem	Score
2-Dimensional Range Minimum Query	17 / 17
Sorting	3 / 3
Next Prime	5 / 5
HopScotch II	12 / 12
Longest Common Subsequence	7 / 7
Quine	10 / 10
Unique Elements	3 / 3
Single Source Shortest Path	7 / 7
Tootsie Rolls	12 / 12

Problem	Score
COCI '06 Contest 1 #1 Modulo	3 / 3
COCI '06 Contest 2 #1 R2	3 / 3
COCI '06 Contest 2 #2 ABC	3 / 3
COCI '06 Contest 5 #1 Trik	3 / 3
COCI '07 Contest 4 #3 Lektira	5 / 5
COCI '07 Contest 5 #1 Tri	3 / 3
COCI '08 Contest 2 #5 Setnja	7 / 7
COCI '08 Contest 3 #2 Kemija	5 / 5
COCI '09 Contest 4 #1 Autori	3 / 3
COCI '11 Contest 1 #6 Skakac	12 / 12
COCI '14 Contest 4 #1 Cesta	5 / 5
COCI '14 Contest 5 #1 Funghi	3 / 3
COCI '15 Contest 3 #4 Slon	12 / 12
COCI '16 Contest 1 #2 Jetpack	7 / 7
COCI '18 Contest 3 #1 Magnus	5 / 5
COCI '20 Contest 5 #3 Magenta	3.273 / 12

Problem	Score
DMOJ Capture The Flag '20 G1 - Sanity Check	3 / 3
DMOJ Capture The Flag '20 C2 - Small RSA	5 / 5
DMOJ Capture The Flag '20 G2 - Where's the flag?	3 / 3
DMOJ Capture The Flag '20 F1 - RGB	3 / 3
DMOJ Capture The Flag '20 C1 - All the bases!	3 / 3

Problem	Score
DMOPC '14 Contest 1 P1 - Median Mark	5 / 5
DMOPC '14 Contest 1 P2 - Tiles	3 / 3
DMOPC '14 Contest 1 P5 - Surprise Teleport	7 / 7
DMOPC '15 Contest 1 P1 - Itami and Manga	3 / 3
DMOPC '15 Contest 5 P1 - Gel Bananas	3 / 3
DMOPC '15 Contest 7 P2 - Not a Wall of Text	3 / 3
DMOPC '16 Contest 2 P3 - Queries	7 / 7
DMOPC '16 Contest 3 P4 - Serpent's Search	3.400 / 17
DMOPC '17 Contest 2 P2 - Balance	5 / 5
DMOPC '18 Contest 1 P0 - Sorting	3 / 3
DMOPC '18 Contest 2 P0 - Mimi and Video Games	3 / 3
DMOPC '18 Contest 3 P0 - Bob and ICS Class	3 / 3
DMOPC '18 Contest 3 P1 - Bob and Music Class	5 / 5
DMOPC '18 Contest 4 P0 - Dr. Henri and Seeing Stars	3 / 3
DMOPC '18 Contest 4 P1 - Dr. Henri and Differential Photometry	3 / 3
DMOPC '19 Contest 1 P6 - Bob and Binary Strings	25 / 25
DMOPC '19 Contest 2 P0 - Roller Coaster	3 / 3
DMOPC '19 Contest 5 P0 - Concurrent Competitor Counting	3 / 3
DMOPC '19 Contest 6 P0 - Trivial Math	3 / 3
DMOPC '20 Contest 1 P1 - Victor Gets Quizzed	3 / 3
DMOPC '20 Contest 2 P1 - Laugh Graphs	5 / 5
DMOPC '20 Contest 2 P2 - Lousy Christmas Presents	1 / 5
DMOPC '20 Contest 3 P1 - Present Checking	5 / 5
DMOPC '20 Contest 3 P3 - A Ring of Buckets	12 / 12
DMOPC '20 Contest 3 P5 - Tower of Power	25 / 25
DMOPC '21 Contest 1 P1 - Partial Game	5 / 5
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 5 P2 - Permutations & Primes	7 / 7
DMPG '17 B1 - Whale and Soul	3 / 3
DMPG '17 B2 - Yoda	3 / 3
DMPG '18 B1 - Pizza Orders	3 / 3
DMPG '18 B2 - Mimi and Modulus	3 / 3
DMPG '19 B1 - Registration	3 / 3
DMPG '19 G1 - Camera Calibration Challenge	1.200 / 12
DMPG '19 S3 - Chemical Counting Capers	5 / 10

Problem	Score
DWITE '08 R1 #5 - Moving Stuff in Boxes	7 / 7
DWITE '09 R5 #2 - Round to Second Prime	5 / 5
DWITE '09 R7 #4 - What is this Algebra?	12 / 12
DWITE '11 R4 #2 - Prime Time	5 / 5

Problem	Score
ECOO '13 R3 P4 - Tour de Force	12 / 12
ECOO '15 R2 P2 - So So	12 / 12
ECOO '15 R2 P3 - Lucas' Other Tower	10 / 10
ECOO '15 R2 P4 - Rectangle Roundup	12 / 12
ECOO '15 R3 P4 - Under the Rug	12 / 12
ECOO '16 R2 P1 - Palindrome Panic	12 / 12
ECOO '16 R2 P4 - Hop, Skip and Jump	12 / 12
ECOO '18 R2 P3 - Factorial	12 / 12
ECOO '18 R3 P2 - Vegenère	12 / 12
ECOO '19 R1 P4 - Bus Route	12 / 12
ECOO '19 R3 P2 - Array Game	12 / 12
ECOO '19 R3 P4 - Network	3 / 15

Problem	Score
GFSSOC '17 J1 - Ramen and Studying	1.500 / 3
GFSSOC '17 S3 - Zhany Zhanbies	12 / 12
GFSSOC '14 Winter J1 - Flying Plushies	3 / 3
GFSSOC '14 Winter J2 - Wow much parking lot	3 / 3
GFSSOC '14 Winter J4 - Tic Tac Moe!	5 / 5
GFSSOC '15 Fall J1 - CodeFights	3 / 3
GFSSOC '15 Fall J2 - Fizz Fuzz	5 / 5
GFSSOC '15 Winter J1 - Festive Fardin	3 / 3
GFSSOC '15 Winter J2 - Purchasing Presents	3 / 3

Problem	Score
Google Code Jam '11 Round 1A Problem B - The Killer Word	12 / 12
Google Code Jam '13 Qualification Round Problem D - Fair and Square	5.400 / 12
Google Code Jam '15 Qualification Round Problem C - Dijkstra	12 / 12
Google Code Jam '16 Round 1A Problem B - Rank and File	7 / 7
Google Code Jam '22 Round 1C Problem C - Intranets	30 / 30

Problem	Score
ACM U of T Tryouts C0 A - Max Flow	3 / 3
ACM U of T Tryouts C1 A - Rock Paper Scissors Fox	3 / 3
ICPC PACNW 2016 A - Alphabet	7 / 7

Problem	Score
JOI '05 Final Round P1 - Questionnaire	3 / 3
JOI '05 Final Round P2 - String	5 / 5
JOI '05 Final Round P3 - Square	5 / 5
JOI '05 Final Round P4 - String of Rings	3.500 / 7
JOI '23 Open P3 - Garden	12 / 12

Problem	Score
Mock CCC '20 Contest 1 J1 - A Rage Tree Problem	3 / 3
Mock CCC '20 Contest 1 J3 - A Geometry Problem	3 / 3
Mock CCC '20 Contest 1 J5 - A Prime Problem	12 / 12
Mock CCC '20 Contest 2 S1 - Arithmetic Hybercube	3 / 3
Mock CCC '14 J1 - Love Overdose	3 / 3
Mock CCC '15 J1 - 416	3 / 3
Mock CCC '22 2 S3 - Kaguya Wants to Analyze the Academy Anthem	12 / 12
Mock CCC '18 Contest 1 J1 - A String Problem	3 / 3
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem	3 / 3
Mock CCC '18 Contest 3 J1 - A Sum Problem	3 / 3
Mock CCC '18 Contest 5 J1 - Looking for the CCC	3 / 3
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 1 J2 - Pusheen OCR	3 / 3
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 1 S3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri	12 / 12
Mock CCC '19 Contest 2 J1 - Tudor Drinks Some Tea	3 / 3
Mock CCC '19 Contest 2 S1 - Tudor's Double Doors	3 / 3
Mock CCC '21 S4 - Infinite Molecule	0.118 / 12
Mock CCC '22 1 S3 - IU	7 / 7
Riolku's Mock CCC S2 - Keen Keener Sequence	7 / 7
Riolku's Mock CCC S2 - Keen Keener Sequence (Hard Version)	12 / 12
Valentine's Day '18 J1 - The Cactus Number	3 / 3

Problem	Score
CCO Preparation Test 3 P3 - Arrow	30 / 30
Mock CCO '19 Contest 2 Problem 5 - A Geometry Problem	12 / 12

Problem	Score
A Sum Problem	3.600 / 12
Athena on Zanzibar Island	12 / 12
OCC '19 B1 - Darcy_Liu	3 / 3
OCC '19 B3 - Difference	5 / 5
Tree Journey	12 / 12

Problem	Score
SAC '21 Code Challenge P1 - Shrinkage	3 / 3
SAC '21 Code Challenge P2 - Littering	5 / 5
SAC '21 Code Challenge P3 - DeMello's Replacement	5 / 5

Problem	Score
Back From Summer '17 P1: Pithy Pastimes	3 / 3
Back From Summer '19 P1: Winnie's Orphans	3 / 3
Back From Summer '19 P5: ABC123E	6.800 / 17
Back To School '16: Harambe	3 / 3
Back To School '17: 🅱aram🅱e	3 / 3
Back To School '17: New English	12 / 12
Back To School '18: Harambe	3 / 3
Back To School '18: Letter Frequency	0.700 / 7
Back To School '19: Chemistry	7 / 7
Canada Day Contest 2021 - CCC Bad Haha	12 / 12
CCCJQR P3	7 / 7
Miracle Sort	3 / 3
Piggy	7 / 7
Triway Cup '19 Summer I - An Easy Problem	5 / 5
Too Simple	7 / 7
New Year's '15 P1 - Invitation Devastation	3 / 3
New Year's '16 P5 - Eggnog Dilemma	12 / 12

Problem	Score
Factorial Calculator	2.100 / 7
TLE '16 Contest 1 P6 - A Very Normal Test	25 / 25
TLE '16 Contest 6 (Mock CCC) J1 - Paper Printing	3 / 3
TLE '17 Contest 3 P4 - Meatballs	12 / 12
TLE '17 Contest 5 P1 - Guess the Number	3 / 3
TLE '17 Contest 8 P2 - Ship Defense	5 / 5

Problem	Score
16 BIT S/W ONLY	3 / 3
2048	15 / 15
2-D Permutations	10 / 10
2spooky4me	7 / 7
Rotations in 3 Dimensions	12 / 12
Mispelling	3 / 3
Mirrored Pairs	3 / 3
A20 Gate	5 / 5
Triple Fat Ladies	5 / 5
AAAA 1 P1 - Even-Odd Sort	7 / 7
AAAA 1 P2 - Heavy-Light Composition	7 / 7
AAAA 1 P3 - Topographical Sort	12 / 12
AAAA 1 P4 - Minimex	17 / 17
AAAA 1 P5 - Mirror Sort	25 / 25
AAAA 1 P6 - The Turtle and the Rabbit	20 / 20
Advanced Battleships	3 / 15
Appleby Contest '19 P1 - Darcy's Debilitating Demands	3 / 3
Appleby Contest '19 P2 - The Love Letter	5 / 5
Appleby Contest '19 P3 - A Recursion Problem	5 / 5
Appleby Contest '19 P4 - Rectangles	6 / 7
Appleby Contest '19 P5 - Matrix Operation	2.500 / 10
Appleby Contest '20 P1 - Terrific Triangles	3 / 3
Appleby Contest '20 P2 - Playful Playdoughs	5 / 5
Appleby Contest '20 P3 - Ridiculous String	4 / 10
Appleby Contest '20 P4 - Philosophy Class	12 / 12
A Coin Problem	12 / 12
A Digit Problem	12 / 12
Arcadia Computing Contest 1 P1 - Test Anxiety	3 / 3
Arcadia Computing Contest 1 P2 - Chemistry	5 / 5
Arcadia Computing Contest 1 P3 - ScanTron	5 / 5
Arcadia Computing Contest 1 P4 - Cyclic Sorting	1.400 / 7
Arcadia Computing Contest 1 P5 - Hacking Grades	7 / 7
Alawn's Problem	7 / 7
Alphabet Score	3 / 3
Amplitude Hackathon Winter '24 Problem 1 - Twila's Walk	3 / 3
Amplitude Hackathon Winter '25 Problem 1 - One-Letter Variable Names	3 / 3
Amplitude Hackathon Winter '25 Problem 6 - 7	3.333 / 10
Troubling Times	5 / 5
A Plus B	3 / 3
A Plus B (Hard)	12 / 12
APTX 4869	10 / 10
Art Academy 0: Prologue	3 / 3
Art Academy	5 / 5
A Simple Multiplication	12 / 12
A Times B	20 / 20
PEG Test '14 - Earth	3 / 3
PEG Test '14 - Fire	5 / 5
PEG Test '14 - Water	3 / 3
Big Deposits	7 / 7
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
List Minimum (Hard)	5 / 5
String Finding	5 / 5
String Finding - Hacking	10 / 10
Binary	5 / 5
Boolean	3 / 3
BPC 1 S2 - Train Commute	12 / 12
Brap Lesh Mafia	5 / 5
Bruce String	12 / 12
BSSPC '21 J1 - Eggy's New Clothes	3 / 3
Cheerio Contest 1 J1 - Pronounceable Words	3 / 3
Cheerio Contest 1 J2 - Phys Ed Class	3 / 3
Cheerio Contest 1 J3 - Festival	5 / 5
Cheerio Contest 1 S1/J4 - Going to School	5 / 5
Cheerio Contest 2 P2 - Cereal Boxes	3 / 3
Cheerio Contest 3 P3 - Everything Array	12 / 12
3n+1	3 / 3
CPC '19 Contest 1 P0 - Shoes	3 / 3
CPC '19 Contest 1 P1 - Distance	3 / 3
CPC '19 Contest 1 P2 - Luggage	7 / 7
CPC '19 Contest 1 P4 - Sorting Practice	12 / 12
CPC '21 Contest 1 P0 - AQT and Alphabet	3 / 3
CPC '21 Contest 1 P1 - AQT and Fractions	0.500 / 5
Dilhan's Computing Contest 1 P1 - The Cathedral of Learning	3 / 3
Dilhan's Computing Contest 1 P2 - Square Sum	9.600 / 12
Dilhan's Computing Contest 1 P3 - Soccer Court	10 / 10
Capture The Flag 2	12 / 12
Double Doors Regional P1 - Tudor Gets a Goat	3 / 3
Counting Subsequences	10 / 10
Division Queries and Updates	4 / 20
Fast Factorial Calculator	7 / 7
Fast Factorial Calculator 2	2 / 20
Fast LCA	12 / 12
Fibonacci Sequence	15 / 15
Fibonacci Sequence (Harder)	17 / 17
Flip the Switches	5 / 5
PEG Test '11 - Cyclopian Puzzle	10 / 10
GlobeX Cup '18 J Sample - Farming Simulator	5 / 5
GlobeX Cup '18 J1 - Rounding Errors	3 / 3
GlobeX Cup '18 J2 - Mark Gambling	5 / 5
GlobeX Cup '18 J3 - Good Numbers	5 / 5
GlobeX Cup '18 J4 - Magical Functions	7 / 7
GlobeX Cup '19 J2 - Winnie Waifu Wars	0.300 / 3
GlobeX Cup '19 S5 - Alien Navigation	20 / 20
Hailstone Numbers	3 / 3
Halves	12 / 12
Hello, World!	3 / 3
Inaho IV	5 / 5
Joshua Needs Help	10 / 10
Knapsack 3	10 / 10
Guess the Sequence	3 / 3
A Math Contest P1 - Arrays	5 / 5
A Math Contest P10 - Tricky Multisets	12 / 12
Multiplication Improvement	5 / 5
Negative Ones	10 / 10
Olympic Scoring	3 / 3
OTHS Coding Competition 2 P1 - Chess Pieces	3 / 3
OTHS Coding Competition 2 P2 - Ghoul Investigators	3 / 3
OTHS Coding Competition 2 P3 - Tally Clicker	5 / 5
OTHS Coding Competition 2 P4 - Magic Barrier	5 / 5
OTHS Coding Competition 2 P5 - Coffee Jelly	7 / 7
Phantom's Python Challenge	36.520 / 40
PIB '20 P1 - Marcus and Head Bonks	3 / 3
PIB '20 P2 - 2 + 2 = 5	5 / 5
PIB '20 P3 - Rulebreaker	7 / 7
Confirmation Bias	10 / 10
Prime Bag	20 / 20
Prime Factorization	5 / 5
Primes 2	3.750 / 15
VMSS Pre-Windsor P1 - Java	3 / 3
VMSS Pre-Windsor P2 - Get Off My Lawn	3 / 3
VMSS Pre-Windsor P3 - Composite Bag	3 / 3
VMSS Pre-Windsor P5 - Math Depression	5 / 5
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
Self-deception	15 / 15
Disclosure	10 / 10
Decoding	20 / 20
RGPC '18 P1 - Giant Cookie	3 / 3
RGPC '18 P3 - Chocolate Day	10 / 10
Root Solver	12 / 30
Dynamic Range Minimum Test	12 / 12
Jason's Theorem	10 / 10
Creating a Sequence	3 / 3
Python Infinite Loop	7 / 7
Bob and Special Mud	12 / 12
Tetration	12 / 12
Traffic Lights	8 / 10
Twos	12 / 12
UCC Coding Competition '20 P1 - Snowstorm	3 / 3
UCC Coding Competition '20 P2 - Optimal Skiing	3 / 3
UCC Coding Competition '20 P3 - Farmer Bob	5 / 5
UCC Coding Competition '20 P4 - Bubble Tea	7 / 7
UCC Coding Competition '20 P5 - Public Transport	7 / 7
UCC Coding Competition '21 P1 - Counterfeit Detection	3 / 3
UTS Open '18 P1 - Love Triangle	3 / 3
UTS Open '24 P1 - Watering the Plants	5 / 5
Valentine's Day '19 J1 - Rainbow Rating	3 / 3
VPEX P0 - Pizza	3 / 3
VPEX P1 - War on Two Fronts	3 / 3
VPEX P2 - Darcy Parties	3 / 3
VPEX P3 - Coding Club	12 / 12
XORacci Tree	17 / 17
XOR Sum	10 / 10

Problem	Score
VM7WC '15 #1 Bronze - Goon	3 / 3
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #3 Gold - Hello, Officer.	10 / 10

Problem	Score
Waterloo 2001 Fall 1 A - Average Speed	3 / 3
Waterloo 2001 Fall 1 C - Babelfish	5 / 5
Waterloo 2001 Fall 1 E - A Multiplication Game	7 / 7
Waterloo 2001 Winter B - Tight words	7 / 7
Waterloo 2001 Winter D - Division	7 / 7
Waterloo 2003 Spring B - Persistent Numbers	5 / 5
Waterloo 2005 Winter E - Traditional BINGO	5 / 5
Waterloo 2008 Spring E - Balance	15 / 15
Waterloo 2013 Fall A - Compressed Words?	5 / 5
Waterloo 2013 Fall B - Java vs. Scheme Smackdown	7 / 7
Waterloo 2016 Fall C - Wizard of Odds	5 / 5
Waterloo 2016 Fall D - Treasure Hunt	5 / 5
Waterloo 2017 Fall A - Art	3 / 3
Waterloo 2017 Fall B - Biology	5 / 5
Waterloo 2017 Fall C - Computer Science	10 / 10

Problem	Score
WC '02 P5 - Intercepted Cowmmunication	5 / 5
WC '15 Contest 1 J1 - Do You Know Your Woburn Colours?	3 / 3
WC '15 Contest 1 J2 - Grouping Recruits	5 / 5
WC '15 Contest 2 J1 - A New Hope	3 / 3
WC '15 Contest 2 J2 - The Empire Strikes Back	3 / 3
WC '15 Contest 3 J1 - Battle Predictions	3 / 3
WC '15 Contest 4 J1 - Telling Time	3 / 3
WC '15 Contest 4 J2 - Mission Briefing	3 / 3
WC '15 Finals J1 - Vertical Posting	3 / 3
WC '16 Contest 1 J1 - A Spooky Season	3 / 3
WC '17 Contest 1 J1 - Canadian Accent	3 / 3
WC '17 Contest 1 J2 - How's the Weather?	3 / 3
WC '17 Contest 2 J1 - The Rings of Power	3 / 3
WC '17 Contest 2 J2 - Breeding an Army	3 / 3
WC '17 Contest 2 J3 - Escaping the Mines	3 / 3
WC '17 Contest 2 J4 - Entish Translation	7 / 7
WC '17 Contest 3 J1 - Like, Comment, and Subscribe!	3 / 3
WC '17 Contest 4 J1 - Fight or Flight	3 / 3
WC '17 Contest 4 J3 - The Infinity Stones	3 / 3
WC '18 Contest 1 J1 - Homework	3 / 3
WC '18 Contest 1 J2 - Making the Cut	3 / 3
WC '18 Contest 2 J1 - Alternate Access	3 / 3
WC '18 Contest 2 J2 - This Message will Self-Destruct	3 / 3
WC '18 Contest 2 J3 - Seeing Double	3 / 3
WC '18 Contest 2 J4 - Ammunition	7 / 7
WC '18 Contest 3 J1 - An Honest Day's Work	3 / 3
WC '18 Contest 3 J3 - R	3 / 3
WC '18 Contest 4 J1 - A Fistful of Quarters	3 / 3
WC '99 P1 - The Matrix	7 / 7

Problem	Score
Yet Another Contest 9 P1 - Permutation Cutting	3 / 5
Yet Another Contest 9 P2 - Nim	2.800 / 7